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Class A bias, speaker sensitivity, watts...?

Hello

Please help me understand the relationship between Class A bias and wattage output. I recently bought a used Vincent Audio SV236MK used for a great price. The specs state 150 watts into 8 ohms, 250 into 4 ohms, and the first 10 watts being Class A @ 8 ohms.

My speakers are Sonus Faber Lumina II which are rated as 4 Ohm with 86db sensitivity. Everything is set up in my small cube shaped office. I used a DB meter on my iPhone and found that when I turn the volume up to what I consider to be "loud" the peak measurement I get is 80db and under.

 

Given the specs above, am I hearing mostly/all Class A watts while listening?

craigvmn

Showing 1 response by mswale

mswale
209 posts
 

Yeah, you are still in class A. Unless you have really inefficiant speakers, or a very big room, most of us are only using a couple watts for normal listening. 

Around 80db at my listening spot is also around a watt. 10w is vibrating the house, 100+w is vibrating pictures off walls. 

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